Lochinvar’s next generation of the KNIGHT XL commercial boiler product family is available in five models, ranging from 399,000 to 1 million Btu/h. The advanced units feature a 97% thermal efficiency, a 10:1 turndown ratio and an updated heat exchanger, the company notes. C9mes standard with CON·X·US remote connectivity and SMART TOUCH operating control technology. www.lochinvar.com